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Newest Chemistry Questions

1. Mass of MgCl2: (insert answer)Mass of NaBr: (insert answer) Mass of H2O: (insert answer)
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2. Rusting iron in water is physical or chemical change
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3. Select the kinds of bonds that use the -ide ending.Ionic Metallic Covalent
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4. Acid-base reactions, such as this one, can also be classified as which type of reaction?NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l)
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5. Which option is an ionic compound?Responses CO upper case C O NO2 upper case N O subscript 2 end subscript LiCl upper case L
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6. Which formula is an ionic compound?Responses N2 upper case N subscript 2 end subscript NO2 upper case N O subscript 2 end
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7. Zn + CuSO4 → ZnSO4 + Cu\Zinc (Zn) reacts with copper sulfate (CuSO4) to form zinc sulfate (ZnSO4) and copper (Cu). A classmate
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8. H2(g) + I2(g) → 2HI(g)A student makes the following statements: Hydrogen always has the same oxidation number, so it has an
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9. Lead (II) nitrate as Pb(NO3)2 and potassium iodide as KI combine to form the products shown. 2 KNO3 + PbI2 How many moles of
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   2. asked by 1135500
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10. Fe ⁺³(aq) + SCN ⁻¹(aq) ⇆ FeSCN ⁺²(aq) + heatBased on the reaction above, which way will the equilibrium shift if a
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11. Write the name for the following compound: AgCl…
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12. Write the name for the following compound: AgCl
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13. Create the following compound: Heptabromide decanitride
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14. Create the following compound: Heptabromine decanitride
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15. Write the name for the following compound: Cl8Br4
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16. Identify the following properties as ionic (9), covalent (7), or metallic (4).High melting point: Usually found in a gaseous
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17. FeCI3 + 3H2O → Fe(OH)3 + 3HCIElement : Fe, CI, H, O Mass of an Atom (amu) : 56, 35, 1, 16 Iron chloride and water react
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18. Will the following replacement reaction occur?MgI2+Cl2 → ? (1 point) Responses No, it will not because iodine and chlorine
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    2. asked by pickles
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19. Which comparison is correct?(1 point) Responses PH3 is a stronger acid than NH3 . cap p cap h sub 3 is a stronger acid than cap
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    2. asked by pickles
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20. Which substances will make a salt when combined?Group of answer choices Fertilizer and detergent Vinegar and antacids Soap and
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    2. asked by meoww :3
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21. Which description is not a property of a base?Group of answer choices Caustic Turns litmus paper red Bitter taste pH higher than
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    2. asked by meoww :3
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22. A triple covalent bond involves two atoms sharing three pairs of electrons.True False
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23. What best explains the formula unit for a compound made from fluorine and hydrogen?HF, because fluorine is short of one
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24. How many single and double bonds does carbonic acid have
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25. Which option contains an example of a polyatomic ion?(1 point)Responses O2 O 2 MgCl MgCl KNO3 KNO 3 CaCl2 CaCl 2
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26. The formula for citric acid, found in lemon juice, is CH2COOH. For each symbol, identify the element and the number of atoms
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27. Question 13 (4.5 points)Draw the Structure for each of the following names. a. 1-chloro butane-2,3-dione b. N,N- diethyl-2-bromo
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    2. asked by goatmanthealien
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28. 1. __ZnS + __HCl → __ZnCl2 + __H2S2. __HCl + __Cr → __CrCl2 + __H2 3. __Al + __Fe3O4 → __Al2O3 + __Fe 4. __H2 + __Br2 →
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29. 1. __ZnS + __HCl → __ZnCl2 + __H2S2. __HCl + __Cr → __CrCl2 + __H2 3. __Al + __Fe3O4 → __Al2O3 + __Fe 4. __H2 + __Br2 →
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30. Use the following picture to help you answer the question: What type of reaction is the examples provided below?Synthesis
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31. Zn + HNOg -> Zn(NO3)2 +H2Using the formula in the previous question, what coefficient needs to be changed? 2HNO₃ 3HNO₃ ,
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32. Two carbon atoms (Group 14) bond with two hydrogen atoms (Group 1) to form acetylene (C2 H2). How would each carbon atom in
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33. Which of the following statements accurately compares ionic and covalent bonds? (1 point)• Atoms in covalent bonds have a
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34. Two carbon atoms (Group 14) bond with two hydrogen atoms (Group 1) to form acetylene ( C2H2). How would each carbon atom in
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    2. asked by pickles
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35. Use the equation to answer the question.CH4 + _____Cl2 → CCl4 + _____HCl Which numbers balance this equation? (1 point)
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36. 1. CBr4Name: Polarity: 2. BH3 Name: Polarity: 3. SO4-2 Name: Polarity: 4. BrI5 Name: Polarity: 5. SiS2 Name: Polarity: VSEPR
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37. Question 13In the balanced chemical equation, below, determine what the coefficient and the subscript represent in 6H2O. Choose
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38. Solution A has the same total volume as Solution B. If Solution A has a higher concentration than Solution B, how do the two
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    2. asked by i love tristen<3
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39. answer this to where a teacher couldn't tell you wrote itUse the chemical equation to complete the activity.
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40. Write the molecular formula, expanded structural formula, and condensed formula of the following hydrocarbons.1. Heptane 2.
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41. Fill out the missing information below.Molecule Name PCl3 Carbon tetrachloride N2O Diphosphorus pentoxide P2O7 Dinitrogen
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42. Write the molecules:20. dinitrogen pentahydride 21. tetraboron heptoxide 22. silicon monocarbide 23. dicarbon hexahydride 24.
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43. Write the name for the following compounds and watch your spelling!1. SCl2 __________________________________________ 2. PI3
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44. A reaction that involves the transfer of electrons from one molecule to another is referred to asan oxidation reaction. a
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45. which characteristic do electronegativity diffrence indicate about reactions bewtween atoms?compound energy storage valence
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    2. asked by sda
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46. The name for PCl5 is Phosphorus pentachloride but the name for VCl5 is Vanadium (V) chloride. Which statement best explains the
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    2. asked by n
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47. ⦁ When you increase the _________ of a reaction, the particles gain _________ energy. They move faster and collide with each
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48. when dry chlorine gas is passed over molten White Phosphorus a mixture of two chloride Phosphorus trichloride and phosphorus
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49. Rxn of Phosphorus (P) with Chlorine (Cl2) ..?With Lewis dot structure
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    2. asked by Rizwan kakar
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50. Rxn of P with Cl2
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    2. asked by Rizwan kakar
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